Use resolve_ref() to implement read_ref().

[git.git] / cache.h

diff --git a/cache.h b/cache.h
index 6f3d39d..63823c3 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -136,6 +136,7 @@ extern unsigned int active_nr, active_alloc, active_cache_changed;
 #define INDEX_ENVIRONMENT "GIT_INDEX_FILE"
 #define GRAFT_ENVIRONMENT "GIT_GRAFT_FILE"
 
+extern char *get_git_dir(void);
 extern char *get_object_directory(void);
 extern char *get_refs_directory(void);
 extern char *get_index_file(void);
@@ -188,6 +189,7 @@ extern char *git_path(const char *fmt, ...) __attribute__((format (printf, 1, 2)
 extern char *sha1_file_name(const unsigned char *sha1);
 extern char *sha1_pack_name(const unsigned char *sha1);
 extern char *sha1_pack_index_name(const unsigned char *sha1);
+extern const unsigned char null_sha1[20];
 
 int git_mkstemp(char *path, size_t n, const char *template);
 
@@ -227,6 +229,8 @@ extern int has_pack_index(const unsigned char *sha1);
 extern int get_sha1(const char *str, unsigned char *sha1);
 extern int get_sha1_hex(const char *hex, unsigned char *sha1);
 extern char *sha1_to_hex(const unsigned char *sha1);   /* static buffer result! */
+extern int read_ref(const char *filename, unsigned char *sha1);
+extern const char *resolve_ref(const char *path, unsigned char *sha1, int);
 
 /* General helper functions */
 extern void usage(const char *err) NORETURN;